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Finding the Fourth Proportional to 605,667.40, 908,501.10 and 206,175.40

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Solution

The fourth proportional to 605,667.40, 908,501.10 and 206,175.40 is: 309,263.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,667.40 : 908,501.10 = 206,175.40 : x
  2. Step 2: Convert to fraction form
    605,667.40/908,501.10 = 206,175.40/x
  3. Step 3: Cross multiply
    605,667.40x = 908,501.10 × 206,175.40
  4. Step 4: Simplify right side
    605,667.40x = 187,310,577,692.94
  5. Step 5: Solve for x
    x = 187,310,577,692.94/605,667.40
  6. Step 6: Final answer
    x = 309,263.10

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.